Re: [PATCH bpf-next v2 5/5] selftests/bpf: Add tests for ECDSA signature verification kfuncs

On Fri, Dec 5, 2025 at 9:40 AM Daniel Hodges git@danielhodges.dev wrote:

Add selftests to validate the ECDSA signature verification kfuncs introduced in the BPF crypto subsystem. The tests verify both valid signature acceptance and invalid signature rejection using the context-based ECDSA API.

The tests use RFC 6979 test vectors for NIST P-256 (secp256r1) with well-known valid signatures. The algorithm "p1363(ecdsa-nist-p256)" is used to handle standard r||s signature format.

Signed-off-by: Daniel Hodges git@danielhodges.dev

.../selftests/bpf/prog_tests/ecdsa_verify.c | 74 ++++++++ .../selftests/bpf/progs/ecdsa_verify.c | 159 ++++++++++++++++++

I think we should also add CONFIG_CRYPTO_ECDSA to selftests/bpf/config?

Thanks, Song